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USA | |
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| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
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| Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
Weber, F. Harold Jr. (1963) Geology and mineral resources of San Diego County, California. County Report 3. California Division of Mines and Geology
Van Nostrand Reinholt Press: 91. |
|
| Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559.
(1908, September) The Copper Resources of California. Bulletin 50. California State Mining Bureau |
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| Donnelly, Maurice (1934) Geology and mineral deposits of the Julian District, San Diego County, California. California Journal of Mines and Geology, 30 (4) 331-370
Short, Maxwell Naylor & E.V. Shannon (1930), Violarite and other rare nickel sulfides: American Mineralogist: 15: 8
Hudson, Frank Samuel (1922), Geology of the Cuyamaca region of California with special reference to the origin of the Nickeliferous pyrrhotite: University of California, Department of Geological Sciences Bulletin: 13: 217, 219
Calkins, F.C. (1916), An occurrence of nickel ore in San Diego County, California: USGS Bulletin 640: 79
Dana 7: I: 264. |
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| SDSU Geology Department unpublished field trip guide, circa 1980. |
- Mesa Grande Mining District
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
|
| Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 94, 133.
Tucker, W. Burling (1924a), Imperial, Inyo, Kern, Los Angeles, Riverside, San Bernardino, San Diego, Ventura Counties: California Mining Bureau. Report 20: 370
Aubury, Lewis E. (1905) The Copper Resources of California. Bulletin 23. California State Mining Bureau |
|
| Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
Weber, F. Harold Jr. (1963) Geology and mineral resources of San Diego County, California. County Report 3. California Division of Mines and Geology
Van Nostrand Reinholt Press: 91. |
|
| Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
Weber, F. Harold Jr. (1963) Geology and mineral resources of San Diego County, California. County Report 3. California Division of Mines and Geology
Van Nostrand Reinholt Press: 91. |
|
| Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
Weber, F. Harold Jr. (1963) Geology and mineral resources of San Diego County, California. County Report 3. California Division of Mines and Geology
Van Nostrand Reinholt Press: 91. |
Encinitas Mine, Rancho Santa Fe, San Diego County, California, USA